277results about How to "Simple post-maintenance" patented technology

The invention discloses a machine vision based turn plate angle high-precision online measurement method. Real time image collection is performed on mark round hole points in a turn plate by utilizinga monocular industrial camera. Through vision and image metrology analysis on acquired images, position information of the mark round hole points in the turn plate can be obtained. Then rotation angle information can be calculated through a geometric method. The advantages of the invention achieved in angle measurement include high measurement speed and realization of real time online measurement; avoidance of influence and damage to working piece surface through implementation of a measurement function by adoption of a non-contact technology; and elimination of interference on measurement results due to lighting environment complexity, spray liquid, water spots and the like in a production field through adoption of an improvement algorithm in the highest level.

The invention discloses a multibeam sonar probe boat head mounting device and a use method thereof. The multibeam sonar probe boat head mounting device is mainly composed of a riser, an A-shaped bracket, a reversed-Y-shaped bracket and an energy transducer mounting bracket. The riser, the A-shaped bracket and the reversed-Y-shaped bracket are successively fixed at a boat head position through corresponding bases. The energy transducer mounting bracket passes through a T-shaped sleeve at the upper part of the reversed-Y-shaped bracket and is fixed by a positioning bolt. An upper flange is welded on the bottom of the energy transducer mounting bracket and is fixed to a lower flange at top of a radome through a flange mounting bolt. The wire rope of the riser is connected with the wire rope on the A-shaped bracket. A wire rope reel is driven through shaking a rocking arm, thereby finishing folding and unfolding of the multibeam sonar probe boat head mounting device. The multibeam sonar probe boat head mounting device and the use method thereof have advantages of convenient operation, low cost, effective insurance for high precision of acquired data by a multibeam detecting instrument, and effective insurance for high safety of the instrument. A design of adjustable water entering depth of the energy transducer is utilized. Experiments represent a fact that the multibeam sonar probe boat head mounting device can be used on small-size boats with different drafts. High versatility of the multibeam sonar probe boat head mounting device is ensured. Furthermore the multibeam sonar probe boat head mounting device can be widely used in marine surveying and marine engineering.

The invention relates to an intelligent housing system. The intelligent housing system comprises a cloud center and intelligent devices configured on an intelligent housing center and each housing product, wherein the intelligent devices and the intelligent housing center are in wireless connection; the cloud center and the intelligent housing center are in Ethernet connection; the intelligent devices have unique communication protocol and an automatic configuration function, so that the intelligent housing system is good in compatibility and simple in application and maintenance work; the intelligent devices are combined with the learning function of the cloud center, so that the user intelligence is thoroughly liberated.

The invention provides a side-mounted radar for barrier control. The side-mounted radar is mounted on an automatic barrier on the side of a roadway and operates through combination of wide and narrow beams. The narrow beams are used for accurately counting the number of vehicles entering and leaving a parking lot and triggering a lane camera. The wide beams detect the presence of targets within a certain range near an automatic rail so as to accurately control the time to lower the rail for avoiding a vehicle smashing phenomenon.

The invention provides a car positioning method and device applied to a GPS satellite signal dead zone. The method includes the steps of firstly, outputting initial position information of a mine car through a CDMA network and GSM network hybrid positioning algorithm; secondly, obtaining positioning information of a DR system; thirdly, distributing two system positioning weights to a mobile communication network and the DR system through a computer system to obtain the final positioning result of the mine car. By means of the method, by taking the actual situation of a remote area into comprehensive consideration and through the mobile communication network positioning method and the DR system positioning method, the situation that a GNSS module signal is shielded and normal positioning can not be achieved is eliminated, the problems that through a mobile network, the positioning accuracy is low, and the long-term accuracy of the DR system is low are solved, the problem that due to the fact that a mine lot is not completely covered with a single communication network, data can not be sent is solved, cost and operating expenses are saved, and the system can be relatively easily maintained and upgraded in the later period.

The invention discloses a mobile direct-payment system. The mobile direct-payment system comprises mobile phone clients and a data center. Registered users input login names and passwords through the mobile phone clients and log in the system, the login names and the passwords are sent to the data center by the mobile phone clients and are verified by the data center, if the login names and the passwords pass the verification, the users successfully logs in the system. A registered user A can carry out payment after selecting short message payment or data payment through a mobile phone client, then payment information is sent to a registered user B and the data center by the mobile phone client through mobile data channels after the registered user selects a paying mode; payment success information is sent to the registered user A and the registered user B by the data center through the mobile data channels, and deposit banks of the registered users are kept informed of conducting transactions to directly finish payment by the data center. The transactions can be conducted by the registered users anytime and anywhere without being limited by the internet.

The invention provides an engine hood hinge structure and a pedestrian protective device. The engine hood hinge structure includes an engine hood, an upper hinge, a lower hinge, a base, a pre-tensioning mechanism for providing a pre-tensioning force for keeping transient fixing connection between the upper hinge and the lower hinge, and an actuation mechanism for pushing the lower hinge to lift upward and breaking the pre-tensioning force; the upper hinge is fixed on the lower surface of the engine hood; a slide groove is formed in the upper hinge; the upper end of the lower hinge is slidingly arranged in the slide groove, and the lower end of the lower hinge is rotatably connected to the base; and the base and the actuation mechanism are fixed on a vehicle body. Compared with the conventional structures in which a hinge shaft is fixedly connected to an engine hood and is pushed by other connection rods, the engine hood hinge structure is simple and flexible, and is simpler in later maintenance.

The invention discloses an AP (Access Point) configuration method. The method comprises the steps of manually configuring the range of an IP (Internet Protocol) address pool of a Dynamic Host Configuration Protocol DHCP, a gateway address and an AC (Access Controller) address by a configuration server; and generating a mapping table, wherein the number of rows of the mapping table is equal to the number of IP addresses in the IP address pool, and manually filling in an AP name and an AP location identifier in the mapping table. The invention further provides the configuration server, an AP and an AP configuration system. The AP configuration method, the configuration server, the AP and the system provided by the invention have the following beneficial effects: the accuracy of IP address allocation can be ensured by the protocol, IP address conflict and waste can be avoided, and an MAC address, an IP address, a name and location identifier information of the AP form the mapping table, thereby facilitating post maintenance, greatly simplifying a process of AP initialization configuration, saving time and reducing the maintenance cost. And besides, the AP configuration method provided by the invention can configure a plurality of APs simultaneously, so as to avoid the complexity of powering on a single AP and configuring the AP in turn.

The invention discloses a suspension gap sensor for a medium-low-speed maglev train. The suspension gap sensor comprises a shell (1), a control circuit board (2) and a resonant circuit (32), wherein the shell (1) is provided with a coil circuit board (3) which is equipped with a printed circuit board coil (31), and the coil circuit board (3) is connected with the control circuit board (2). The suspension gap sensor has the advantages of good interference resistance, firmness, reliability, compact structure, high integration, excellent waterproof and dustproof capabilities, and rapidness and convenience for maintenance.

The invention discloses a method for purifying air. The method comprises the following steps of: making the air pass through a first-stage high-voltage electrostatic field for exposing genetic substances contained in harmful substances in the air in an electric field directly; introducing the air treated by using the first-stage electric field into a second-stage high-voltage pulse electric field; and striking off molecular bonds of the genetic substances to change genetic information by using high-energy particles formed by high-voltage pulse to crack and kill harmful substances so as to fulfill the aim of purifying the air. The method is on the basis of a cracking principle without generating an electron beam, strong electromagnetism or new photoelectric pollution, so the method is safeon an environment and a human body. Later maintenance is relatively simple; and maintenance cost is low. Simultaneously various microorganisms, bacteria and viruses can be killed, so the air can be purified completely. In conclusion, the method has the characteristics of low cost, long purification maintaining time, no harm or side effect on the human body, so the method can be performed when people are around.

The invention discloses an automatic express sorting machine, and belongs to the technical field of logistics sorting. The automatic express sorting machine structurally comprises a weighing device, a conveying device, a driving device and a controller, wherein the conveying device is connected with the driving device, and is driven by the driving device; the driving device is a bidirectional driving device, and is connected with the controller; the conveying device is positioned on a scale of the weighing device, and a sensor in the weighing device is connected with the controller. The automatic express sorting machine has the advantages that the manufacturing cost is low, and the size is small; the automatic express sorting machine can be widely applied to the sorting and counting parts and the medium and miniature transfer yards, the maintenance is simple, and the labor cost is reduced.

The invention discloses a public place visitors flow rate monitor method based on RFID. The method comprises the following steps of setting up a visitors flow rate monitoring system based on RFID in a public place, and measuring a large amount of data according to the system; establishing a reference value and an extreme value for judging the current visitors flow rate; acquiring real-time data, which includes extracting the population coverage area based on LSI and obtaining population movement speed and the range detection data; and comparing the obtained data with a current standard to judge the current visitor flow situation. According to invention, RFID technology related equipment is high in cost performance, and has a characteristic of high environment resistance, so that investment cost can be substantially reduced; in a public place where a crowd do not carry cards embedded with electronic labels, the current flow of people can also be subjected to real-time monitoring; the LSI can be used to analyze the population coverage, so that not only can the current test results be verified, but also certain prediction can be made for short-term changes in the flow of people.

The invention relates to a seeding nozzle with self-cleaning and anti-blocking functions and a seeding device with the nozzle, and belongs to the technical field of plug tray seeding. In order to efficiently carry out self-cleaning and anti-blocking treatment when the nozzle is blocked, the seeding nozzle comprises a nozzle head, a connecting block, an offsetting spring, and an anti-blocking piston, wherein the nozzle head is in a circular hollow structure, and one end of the nozzle is provided with a suction hole; the connecting block is in a circular hollow structure, one end of the connecting block is connected with the nozzle head, and the other end of the connecting block is connected with an external support part; the offsetting spring is fixed in an internal chamber of the nozzle head; the anti-blocking piston is embedded in the inner chamber of the nozzle head, and is connected with the inner chamber of the nozzle head by the offsetting spring; and the anti-blocking piston is provided with an anti-blocking needle used for coming in and out of the suction hole in the process of sliding the anti-blocking piston. The nozzle adopts the anti-blocking needle to enter the suction hole under the function of positive air pressure, and adopts a mechanical structure to accomplish the self-cleaning and anti-blocking operation of the suction hole during the seeding, so that the seeding nozzle can efficiently avoid the problems that the seeding efficiency is seriously affected by complicated operation steps and the overlow locking cleaning effect of the suction nozzle when the nozzle of the existing seeding machine is blocked.

The invention discloses a method for signal coverage in Internet-of-elevators application and belongs to the field of network coverage. The method comprises the following steps that: S1, in the earlystage of the deployment of an Internet-of-elevators system, original operators are directly multiplexed to deploy signals for elevators with two signal coverage modes of installing directional antennas in elevator shafts and installing antennas in elevator halls on each floor, signal strength testing is carried out according to standards, and the method can be implemented in the elevators when conditions are met; and S2, under the condition of no signal coverage or insufficient coverage signal strength, signal coverage in the shafts is carried out through macro station signals, indoor distribution station signals or a wireless repeater mode and a 4G/5G routing-to-wireless through-beam mode with original equipment not transformed. According to the method of the invention, the above two network deployment schemes can be adopted; and therefore, the signal dead angle of an Internet-of-elevators system is solved, it is guaranteed that the fault information of each elevator provided with equipment can be uploaded in time, and network deployment is convenient and fast. Compared with a conventional deployment scheme, manpower and material resources are saved.

The invention discloses a roll stabilization system for a crane sling. The roll stabilization system comprises a plurality of fans (1) and a fan control system, wherein the fans (1) are separately positioned at the four opposite corners of the crane sling (2) and are symmetrical about the center of the sling (2); air openings of the fans (1) face the sling (2); and the fan control system controls the fans (1) to act on the sling (2). The invention further provides an operation method of the roll stabilization system for the crane sling. According to the roll stabilization system, the roll stabilization effect is achieved through the fans and the simple fan control system, structure is simple, cost is low, and later maintenance is simple; torsion and changing resistance of the sling is directly increased through reverse thrust generated by the fans, so that the roll stabilization system is safe and reliable, and the roll stabilization effect is good; and quick alignment of the sling can be achieved, and assembly and disassembly efficiency is improved.

The invention discloses a design method of a multi-functional variable-parameter viscous damper and the damper, and relates to the technical field of shock absorbing. The design method of the multi-functional variable-parameter viscous damper includes the steps that according to the damping factor C I and the speed factor alpha I, varying with the change of the speed V of a damper valve, of the viscous damper, a constitutive relation curve of the viscous damper is divided into a plurality of phases; according to the constitutive relation curve, three curved surfaces of the damper valve in the viscous damper are designed; and the first curved surface, the second curved surface and the third curved surface correspond to the phase I, the phase II, and the phase III. According to the design method, the viscous damper can automatically adjust damping force based on the movement speed of a damper piston, and meet requirements for a plurality of application scenarios in the same bridge. The viscous damper can effectively protect the bridge against damage caused by temperature-resulted deformation, is beneficial for reducing displacements caused by wind vibration and external loads of brakes so that devices, such as the viscous damper and expansion joints, can be prevented from premature fatigue and damage, and is beneficial for improving the seismic resistance of the bridge structure.

The invention provides a digital calibration system and method of a laser cast instrument. The calibration system comprises a calibration platform, at least two digital receiving targets and a computer, wherein the at least two digital receiving targets are used for receiving laser beams emitted by an instrument to be detected; the computer is electrically connected with the digital receiving targets; the calibration platform comprises a platform and a reflection mirror; the platform is used for arranging the instrument to be detected and a hole which penetrates longitudinally is formed in the center of the platform; the reflection mirror is arranged below the platform so that light emitted by the instrument to be detected penetrates through hole is reflected by the reflection mirror. Detection items of the calibration method provided by the invention comprise horizontal angle i precision and/or horizontal straightness accuracy, and/or vertical accuracy, and/or orthogonal accuracy, and/or lower centering point accuracy, and/or upper centering point accuracy. The digital calibration system of the laser cast instrument is simple in structure; pre-period calibration and post-period maintenance are relatively simple and the cost is relatively low; the digitization efficiency of detection is higher; the digital calibration method of the laser cast instrument is simple to operate and has high accuracy of a calibration result.

The invention discloses a load-bearing type four-bar linkage automatic deviation correction device. The device comprises a runway mechanism. The runway mechanism comprises rotary assemblies I, rotary assemblies II, carrier roller cross beams and a load-bearing cross beam. The carrier roller cross beams and the load-bearing cross beam are connected through a pair of the rotary assemblies I. Front-extending square tubes are disposed on the load-bearing cross beams and provided with the rotary assemblies II. The rotary assemblies II are provided with parallel extending sleeves. Supports are welded to the carrier roller cross beams, and carrier rollers are arranged on the supports. One end of each of parallel extending tubes is inserted into the corresponding parallel extending sleeve of the runway mechanism. Adjustable vertical roller linkage bars are inserted into an installation cavity where the other end of each of the parallel extending sleeves is welded. Dual vertical roller sleeve assemblies and detection vertical rollers are movably installed on the adjustable vertical roller linkage bars. The deviation correction device can conduct effective deviation correction on high-speed, large-capacity, long-distance and high-strength belt conveyers in the severe work environment, especially on large wide belts.

The invention relates to a submerged plant fixing and planting method suitable for a mountainous river. The method includes the steps of 1, determining the layout size of a three-dimensional net according to the width and shape of the river, cutting a three-dimensional vegetation net, and placing the three-dimensional vegetation net in sediment of a riverway; 2, arranging an overflow dam on the upstream of the three-dimensional vegetation net, arranging an enrockment area at the front end of the three-dimensional vegetation net, and fixing the three-dimensional vegetation net through enrockment; 3, placing submerged plants or submerged plant seeds in the three-dimensional vegetation net. According to the submerged plant fixing and planting method, by preparing the anti-scoring submerged plants which are robust in root, long and narrow in branch and soft, additionally adding the three-dimensional vegetation net and the like and locally pressing stone to fix the three-dimensional net, the problems in construction of a submerged plant community of the mountain river and long-term stability of a system are solved.

Aiming at the defects of high equipment investment, high operation cost, large occupied area and the like in an ultralow-concentration and large-air-volume organic waste gas mainstream treatment process, the invention discloses a VOCs adsorption-plasma catalytic regeneration device and a treatment system and process. The adsorption-plasma catalytic regeneration device comprises a gas tank, a plasma discharge unit and an adsorption/catalyst unit. The plasma discharge unit comprises a plasma pulse power supply and a flat discharge structure. The adsorption/catalyst unit is arranged between the discharge electrodes and adopts a three-section design, namely a high-efficiency adsorption catalysis section, a buffer section and a medium-efficiency adsorption catalysis section. The high-efficiencyadsorption catalysis section is filled with a noble metal modified molecular sieve; the buffer section is hollow; and the medium-efficiency adsorption catalytic section is filled with a common metal-loaded molecular sieve. The whole device realizes the integration of adsorption, desorption and treatment units, and simplifies the treatment system. The whole process is controlled by a PLC, 24-hourcontinuous and stable operation is achieved, and VOCs are efficiently removed.